Tholomew



FREDK..H. BARTHOLOMEVILOF NEWYORK, ,N. Y.

HYDRANT.

Specification of.-Lette1s Patent No. 4.41.0, .dated Marchi?, 1846.

To all/whom it may concern.'

Be it knownthat I, FREDERICK I-I. BAR- THoLoMEw, of the city, county,and State of New. York, have invented'a new and useful improvement inthe construction of stop.

cocks or valves anditheir applicationoi and combination with hydrantsfor the purposeof' introducing water ory other'fluids from 1 aqueductsor otherwise; and I do hereby de clare Vthat. the ollowingis afull,.clear, and exact description of the construction and applicationof the same, reference being had to the annexed'specication anddrawings7 making a part of this specification..

The nature of my invention consists in an improvement in theconstruction of pistonsfor valves or stop cocks which by the action ofthe water and atmosphere shall close so gradually and gently as not todestroy lead pipe by concussion and by which also when applied incombination with a plunger for hydrants shall form a chamber into whicha portion of water in the hydrant may recede below the action of frostand not waste into and saturate the earth.

Figure 1, is a sectional view by which A A represents the stock of ahydrant which may be of wood or metal say 5 or 6 feet long having a holestraight through it of say 4 inches diameter.

B is a plunger of wood or other material of proportionate length to thestock and about one eighth of an inch sinaller than the bore through thestock, the t-op end beveled and inclined toward the spout G having ahandle C, of sufficient strength extending up through the cap F and onwhich is fitted and secured an iron handle or knob E. D D, a hollow pluginserted into the top of the stock about 5 in. long for the purpose ofpreventing the waste from dashingl against and wetting the part of thehandle exposed to the weather when the hydrant is closed and so preventthe handle from being frozen fast. This object may also be eiected byconstructing the cap F with a hollow hubl cast with the cap (if made ofmetal) extending from the lower side downward about four or fiveinches-and also the same object may be effected by attaching a dasher orcollar onto the handle between the cap F and the top of plunger orpiston B.

F is a cap of iron or wood secured by screws or otherwise and having asquare hole or other shaped hole in the center with on the bottom. Thiswill require more 'the handle E working. through it yand; so

fittedto itasnotto admit of being twisted `around by a ,groove-and'toothor bybeing square. v`

. Gis'ainetallicspout Otl in. borewhich4 screwsinto the stock andinclines downward abontione foot. fromt-hetop of the stock;

H, II, is a wood; plug driven up tight v'intothe bottomzo-f the stock:about five inches long, .hav-ing a' hole inits. :center of suitablesize -to admitthe valvefore stop cockI I.v

I, I, is a metallic tube or cylinderofaabout Ysix inches length androneand a half; inches diameter: inside, being-A closed at the top except anaperture of about three fourthsof an inch. The-bottom being closed by. ascrew cap M.

N is an arm or elbow to which is attached by a coupling or otherwise thepipe or tube conducting the water, land of same capacity as the pipe orconductor.

K, K is a metallic turned piston or plunger about nine inches longincluding the shank R, having a shoulder or flange fitting the bottomend of plunger B. A part of this flange Y is square for the purpose ofits being screwed into the plunger B. Below the shoulder or flange andextending about 1% inches is a stem about in size, thence extendingdownward about one' inch the size is increased to about a2 inch,extending downward of same size about 3 inches the size of this last 3inches being adapted to and just filling the aperture 'I in the top ofthe tube or box I, I, so as to work through the aperture easily. Belowthis part of the piston is a stem or screw about in. thick and one in.long, onto which is put the leather or india rubber washer V which isfastened and secured by nut W.

Fig. 2, is a sectional view of another mode of constructing a value orstop cock. A A the barrel or tube. B the piston. E nut securing thewashers D, Gr. C, cap screw to open it than that in Fig. l. A

The hydrant as shown in Fig. l, is in an open position (to discharge)the water being received in through elbow or joint N, passing up throughbox I, I, through aper# ture T, thence up through the space between theplunger B and the hole in the stock A A out of spout G.

The hydrant is made lto discharge by pressing down upon the handle E,which forcel with the plunger B and the piston or plunger K K must bedepressed about four inches to produce a full discharge and which uponremoving the pressure will rise upward and close by means of the oatingof the plunger B (if light enough) and thepressure of the water againstthe bottom of the piston K, K, and when the plunger B and piston K, K,have risen up until at the point X Fig. 4, the piston then cutting ofi'the communication of water by closing or iilling up the aperture T, andstill rising move together with the plunger above (the communicationbeing closed) form at the bottom of the plunger and above the Cylinder II, a chamber or space into which the water contained in the spacebetween the stock and plunger B, falls below the action of the frostwhile at the same timeit is retained within the stock of the hydrant andnot permitted to Waste into and saturate the ground at its base.

What I claim as my invention and improvement and desire to secure byLetters Patent is y 1. The combination of the plunger B with the pistonor valveJ cock K K in the manner and for the purpose described.

2. Also I claim the combination of the plunger and piston with thehydrant substantially as described said combination effecting the doublepurpose of checking the concussion from the water and of furnishing avariable chamber in which the waste water may descend away from theiniiuence of frost, and not waste away into the` ground.

3. I also claim the construction ofthe pis ton K K by which the aperture`T is `closed before the -i'ull closing of the valve and which whencombined with the plunger shall furnish a variable chamber for the`purpose herein set forth.

FREDERICK H. BARTHOLOMEW.

Witnesses: y

HENRY STONE, CEAS. G. PAGE.

